Roll control mechanism for textile machines and the like



Nov. 15, 1955 H. w. GROCE 2,723,441

ROLL CONTROL MECHANISM FOR TEXTILE MACHINES AND THE LIKE Filed Aug. 5, 1954 4 Sheets-Sheet 1 Q w: E (Q T INVENTOR. A m 190/2751 W 6'106'6', m K BY @912 i? v2.4

A TTORNEYS.

H. W. GROCE Nov. 15, 1955 ROLL CONTROL MECHANISM FOR TEXTILE MACHINES AND THE LIKE Filed Aug. 5, 1954 4 Sheets-Sheet 2 mum INVENTOR. Hamer W F5066, Y BY [34 W4 ATTORNEYS.

Nov. 15, 1955 H. w. GROCE 2,723,441

ROLL CONTROL MECHANISM FOR TEXTILE MACHINES AND THE LIKE r Filed Aug. 5, 1954 4 Sheets-Sheet 3 3B 35 111 33 ,1 B0 (8 36 38 L 28 30 if I j L l I if: 3a 31 3] 11 -/5 1i? 11 E i 6 I INVENTOR.

EVA 0Z9; Z5208,

ATTORNEYS.

Nov. 15, 1955 H. w. GROCE 2,723,441

ROLL CONTROL MECHANISM FOR TEXTILE MACHINES AND THE LIKE Filed Aug. 5, 1954 4 Sheets-Sheet 4 INVENTOR. W X5066, 46 1 A TTORNEYS.

United States Patent "Ice ROLL CONTROL M-EfJHAiNISM: FOR MACHINES AND THE LIKE Application August 5, 1954, Serial No. 448,100

9 Claims. (CI. 28-35) This invention relates to roll control mechanism for textile machines and the like. More particularly, it is concerned with mechanism useful, for example in connection with sizing machines or slashers, for raising and lowering the carrier rolls relativeto the delivery rolls whereby warp yarns, after being sized and dried, are directed to beams which are subsequently transferred to looms for incorporationof: the. warps into fabric or cloth.

My invention has-for its chief aim, the provision of a simple and reliable selectively-operable mechanism whereby either one or the other or both of: the carrier rolls can be retracted simultaneously at opposite ends' from the delivery roll, to facilitate initial threading of the warps, or for any other reason during operation of the slasher, with avoidance of strains in the mechanism.

Other objects and attendant advantages will appear from the following detailed description of the attached drawings wherein:

Fig. l is a fragmentary view, partly in elevation and partly longitudinal section, of the head end of a slasher with a carrier roll control mechanism conveniently embodying my invention.

Fig. 2 is a plan view of the organization.

Fig. 3 is a broken out end elevation looking as indicated by the angled arrows IIIIII in Figs. 1 and 2.

Figs. 4, 5 and 6 are fragmentary views corresponding to Fig. 1 and showing the carrier roll control mechanism in different positions of adjustment.

With more specific reference to these illustrations, the side frames of the slasher are designated by the numeral 10; and mounted upon the ends of the frames 10 are bearing blocks 11 for the shaft 12 of the delivery roll 13. The carrier rolls 14 and 15, between which and the delivery roll 13 the yarns Y pass en route to a take-up beam (not shown), have their shafts 17 and 18 respectively engaged in the opposite ends of levers 29. As shown, the levers 20 are medially pivoted for movement about stud bolts 21 in the distal ends of drag links 22 which are free upon a transverse rock shaft 23 journalled at its opposite ends in bearing blocks 25 adjacent the delivery roll 13. The carrier rolls 14 and are thus fioatingly supported by the drag links 22.

Mounted for independent movement about the protruding ends of the shaft 12 of the delivery roll 13 are cams 26 which are sector shaped in configuration, and which are provided with edges notches a-g for selective engage-- ment beneath grooved collars 27 and 28 respectively on opposite ends of the shafts 17 and 18 of the carrier rolls 14 and 15. It is to be noted that the notches a, b, d, and g of the cams 26 are all at the same radial distance from the axis of the shaft 12, and that the notches c, e, and f are at a shorter radial distance from said axis. By means of links 30, the cams 26 are connected to short upright arms 31 fast on the rock shaft 23. A pendent arm 32, aflixed to the rock shaft 23 at the center, is connected to the piston rod 33 of the double-acting cylinder 35 which is pivotally supported at its rear end, as at 36, by

2,723,441 Patented Nov. 15, 1955 a bracket 37 on a portion 38 of the slasher framework. The cylinder 35 has ports at opposite ends thereof connected by piping 39 and 40 to a three way control valve 41whereto compressed air or other pressure fluid is conducted, from a suitable source of supply (not shown), by way of a main 42. Interposed' in the main 42 is a pressure regulator 43 and a pressure gauge 45.

With the piston of the cylinder 35 substantially in its normal mid position and the other parts of the mechanism disposed as shown in Fig. 1, i. e'. with the notches c and f of the cams 26 in registry with the collars 27 and 28 on the shafts 17 and 18 of the carrier rolls 14 and 15, said rolls are both in running engagement with the delivery roll 13.

When it is desired to lift the carrier roll 15 alone clear of the delivery roll 13, the valve 41 is manipulated to admit pressure fluid intothe left. hand end of the cylinder 35 in Fig. 2. As a result, the piston rod 33 is shifted to the right and the arm 32 moved counter clockwise as shown in Fig. 4 and, through the short arms 31 on the rock shaft 23 and the links 30, the cams 26 are moved in the same direction about the shaft 12 of the delivery roll 13. By this movement of the cams 26, the notches g are brought beneath the collars 28 on the shaft 18 of the carrier roll 15 which latter is accordingly lifted clear of the delivery roll 13 due to the greater radial distance of said notches from the axis of the delivery roll shaft 12, than the notches previously occupied, the position of the delivery roll 14 being left unchanged, i. e., in running engagement with said delivery roll.

When it is desired to lift the carrier roll 14 alone clear of the delivery roll 13, the valve 41 is manipulated to admit pressure fluid into the right hand end of the cylinder 35 whereby the piston rod 33 is shifted leftward in Fig. 1, and the earns 26 are turned clockwise by movement cornmunicated through the arms 32 on rock shaft 23 and the links 30, until the notches b of said cams are brought beneath the collars 27 on the shaft of the carrier roll 14 as in Fig. 5. In this action, the notches e are brought beneath the collars 28 on the shaft 18 of the carrier roll 15 which however remains in running engagement with the delivery roll 13.

Both carrier rolls 14 and 15 can be raised clear of the delivery roll 13 by further admission of pressure fluid into the right hand end of cylinder 35, the earns 26 being thereby moved past the position of Fig. 5 to the position of Fig. 6, and the notches a and d of said cams respectively brought beneath the collars 27 and 28 on the shafts 17 and 18 of said rolls. By raising the carrier rolls simultaneously at opposite ends instead of raising the ends of said rolls independently as was done heretofore, it will be seen that straining of the mechanism is effectively precluded.

Having thus described my invention, I claim:

1. In mechanism for controlling carrier rolls associated with and normally engaging the delivery roll of a textile machine or the like, a pair of medially-pivoted levers between the opposite ends of which the carrier rolls are supported; means by which the pivots of the levers are floatingly sustained; cams having edge portions adapted, by cooperation with the axis ends of the carrier rolls, to raise said rolls either individually or separately from contact with the delivery roll; and actuating means for variantly moving the cams for selectively positioning of said edge portions thereof beneath the ends of respective carrier rolls to raise them either simultaneously or individually as aforesaid.

2. The invention according to claim 1, wherein the cams are sector shaped and mounted for independent movement about the axis ends of the delivery roll.

3. The invention according to claim 1, wherein the actuating means includes a rock shaft journalled in fixed bearings adjacent the delivery roll, a pair of arms affixed to the rock shaft, and links connecting the cams with said arms.

4. The invention according to claim 1, wherein the actuating means includes a rock shaft journalled in fixed bearings adjacent the delivery roll, a pair of arms affixed to the rock shaft, and links connecting the cams with said arms; and wherein the sustaining means for the pivots of the carrier roll supporting levers is a pair of drag links freely fulcrumed on the rock shaft.

5. The invention according to claim 1, wherein the actuating means includes a rock shaft journalled in fixed bearings adjacent the delivery roll, a pair of arms afiixed to the rock shaft, links connecting the cams with said arms, a double acting cylinder, another arm fast on the rock shaft connected to the piston rod of said cylinder, and a valve for controlling admission and exhaust of pressure fluid to and from opposite ends of said cylinder.

6. In mechanism for selectively raising and lowering carrier rolls relative to the delivery roll of a textile machine or the like, a pair of drag links freely fulcrumed on a rock shaft adjacent the delivery roll; levers medially pivoted to the distal ends of the drag links, between the ends of which levers the carrier rolls are respectively supported; means for actuating the rock shaft; and cams freely fulcrumed on the axis of the delivery roll and connected to the rock shaft whereby, upon partial rotation of the rock shaft in one direction, one of the carrier rolls is raised clear of the delivery roll, and whereby, upon partial rotation of the rock shaft in the opposite direction,

the other carrier roll is raised clear of said delivery roll.

7. In mechanism for selectively raising and lowering carrier rolls relative to the yarn delivery roll in a textile machine or the like, a pair of drag links freely fulcrumed on a rock shaft adjacent the delivery roll; a pair of levers medially pivoted respectively to the distal ends of the drag links, between the ends of which levers the carrier rolls are respectively supported; means for actuating the rock shaft; and cams freely fulcrumed on the axis of the delivery roll and connected to the rock shaft whereby, upon partial rotation of the rock shaft a definite amount in one direction, one of the carrier rolls is retracted from the delivery roll, and whereby, upon partial rotation of the rock shaft a definite amount in the opposite direction, the other carrier roll is retracted from the delivery roll, and whereby, upon additional partial rotation of the shaft, in one direction both carrier rolls are retracted from the delivery roll.

8. The invention according to claim 6 further including manually controlled power means for actuating the rock shaft.

9. The invention according to claim 7, further including manually controlled power means for actuating the rock shaft.

Stienen Oct. 24, 1939 Smith et al Ian. 5, 1954 

